When executing activity allocation, you get error BK057 “No activity prices exist for XXXXXXXXXX/XXXX”.
SAP S/4HANA Cloud
Reproducing the Issue
Make activity allocation with App Enter Activity Allocation.
There is one possibility that exchange rate for type P is not maintained in your system.
Maintain the exchange rate and test again.
KB21N, cost rate , KBA , CO-OM-ABC , Activity-Based Costing , Problem